Osamu Kondo

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Yokohama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method for producing polyolefin foam sheet
- Patent number 5,198,271
- Issue date Mar 30, 1993
- Bridgestone Corporation
- Seiji Ishii
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Microcellular polyurethane elastomer and manufacturing method of th...
- Patent number 4,647,596
- Issue date Mar 3, 1987
- Bridgestone Corporation
- Seiji Ishii
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...